On Tue, Apr 11, 2006 at 12:55:12PM -0400, Scott Loveless wrote: > > > > Are such lenses even usable on older bodies like the MX? > > The MX is manual only. Lenses set on A and lenses without aperture > rings can only be used wide open.
I believe lenses set on "A" will behave as if set to f22 (although the metering circuitry may very well believe they're set to f32). I'd guess lenses without aperture rings will behave the same way, and stop all the way down, rather than remaining wide open.
